I am trying to do this build and I am having considerable trouble now that I am in Merciless. I don't know if it is something I did wrong with my build, my equipment or play style and I was wondering if you could point out what I might be missing. Here is my build so far:

It's your playstyle or gear, you can link gear easily by clicking reply to thread, and then clicking your charcter at the top end of the page, go to invenoty and left-click the gear, it links them to your post.

5 link would be IB+Melee Splash+Multi/Faster Attacks+Blood Magic+Melee Physical Damage
Life leech is 2% from tree,2-4% would be from gear or warlords mark
auras would be grace,hatred,purity
around 130% more armor
7 endurance charges
300% phys damage
270% life
if i calculated everything correctly just using grace would give me around 5k armor,with 7 end charges and molten shell (additionall 1.5k armor) build is tankier than yours version and probably has more dps
Am I missing something here or that would be everything build needs?

Is the Marohi Erqi absolutely a must for this build? I found one while running maps on my spectral throw Scion, had fun with it for a bit, but it was a little slow for my taste. I spent a weekend getting this build up, and finally got to equip it, only to be underwhelmed. It's not 4 linked, and a used up all my fusings to try and get it to at least that, but no luck. I'm getting destroyed in merciless because I can't attack fast enough to hit anything. Should I just sell the thing for a few exalt and use the currency to better gear up my char? Seems like it would be better than trying to make the Erqi work.